DOCSLIB.ORG

How to Specify AMCA-Certified Sand Louvers

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
How to Specify AMCA-Certified Sand Louvers August 2017 How to Specify AMCA-Certified Sand Louvers An AMCA International White Paper AMCA International 30 West University Dr. Arlington Heights, IL 60004 USA www.amca.org This white paper is available to download at no cost at www.amca.org/whitepapers AUTHORED BY THE AMCA INTERNATIONAL SAND LOUVER COMMITTEE SEND COMMENTS AND SUGGESTIONS TO MICHAEL IVANOVICH, SENIOR DIRECTOR, INDUSTRY RELATIONS, AMCA INTERNATIONAL, [email protected] How to Specify AMCA- Certified Sand Louvers ABSTRACT This white paper describes how airborne sand has posed an increasing challenge for HVAC service technicians and how and how specifying AMCA-certified sand louvers can help mitigate sand-related problems. For building owners in Persian Gulf countries, sand storms have long been a fact of life and a threat to HVAC equipment. For this reason, there is growing global attention on the quantity of sand that moves through the louvers installed on building facades and casements of equipment penthouses and enclosures. But a great help has been introduced in this struggle against sand penetration, and that is the introduction of louvers specifically designed, tested and certified to reject sand. The Air Movement and Control Association International (AMCA) and its members have worked to improve the integrity of sand louver ratings and to make them simpler to specify. AMCA is a global association of manufacturers of louvers, fans and other dampers, as well as other air-system products. The association, which formed in 1917, has been administering the AMCA Certified Rat- Sand louver with a plate containing holes for sand to exit. Im- ings Program (CRP) for nearly 75 years. In 2016, AMCA published an ANSI-accredited test procedure age courtesy of Ruskin Titus Gulf. for rating wind-driven sand rejection, and the CRP expanded to include certification of wind-driven sand rejection for louvers. This white paper describes the wind-driven sand problem, the AMCA test standard and ratings certification and how to specify AMCA-certified sand louvers for your next project. AIRBORNE SAND PROBLEMS HVAC equipment needs prescribed amounts of outdoor air to function properly, and that air is typically provided through weatherproof ventilation louvers installed on building facades. When an airstream loaded with sand particles makes its way through the louvers, it deposits the sand onto the floors and in the air near machinery, which then clogs the air filters of HVAC equipment in mechanical rooms. WWW.AMCA.ORG 1 These sand-related problems have created real costs for HVAC service companies. MERV-rated air filters intercept Vertical Louver Blade low-range particle sizes of 0.3–10 microns and up to 62.5–80 ∠20x30x3 Support microns on the high range. As the filter becomes clogged, energy use increases, and the resistance to airflow takes a toll on the air handling unit compensating for the blockage of airflow. Building owners, then, will deal with more than the need to frequently replace air filters; they will also see sand intrusion drive up utility bills and take a toll on their Louver Jamb equipment. Louver Head More severe costs begin to accumulate as well. The reduced Vertical Louver Blade airflow from clogged air filters can cause a chain reaction of ∠20x30x3 Support costly problems. Insufficient airflow through a heating and cooling system can cause overheating of the air handling unit, heat exchanger and generator, which in turn can cause a premature shutoff. If that shutoff happens too often, the electronic limit switch safeguard can fail, and then the air handling unit will not function until it is serviced. Parts and labor for this can easily cost in the $200 range. Cleanup costs will also begin to mount for a building in a sand-afflicted zone. Sand needs to be removed from floors, ducts, air handling units, rooftop air conditioners and other air-system components. Service calls are frequent, creating a drain on time and budget. These are all preventable expenses, because there exists a ∠20x30x3 Support Vertical Louver Blade cost-effective means of trapping sand and depositing it on Louver Sill the ground along the building façade. This solution is the sand louver. Basically, sand lovers are prefilters. They solve Figure 1. Cross section of a sand trap louver showing how sand the problem of excessive sand intrusion is stripped from the airstream and allowed to fall to a bottom rail and fall toward the ground outside the building. Image courtesy before the building envelope is even of McGill Architectural Products. breached. A HISTORY OF THE PREFILTER SOLUTION The use of sand louvers as prefilters is relatively new, only beginning to come into use in the 1980s. Historically, the HVAC industry has relied on filters inside HVAC and other mechanical equipment, rated in accordance with two different ASHRAE test standards: ASHRAE Standard 52.11, which rates filters according to dust spot efficiency, and ASHRAE Standard 52.22, which rates filters for minimum efficiency reporting value. ASHRAE 52.1 has been withdrawn, so ASHRAE 52.2 is the active ASHRAE filter-rating standard. Additionally, wind-driven particles traveling at high speeds would be intercepted by a fan unit’s filters, rated in accordance with ASHRAE 52.2. Conventional louvers not tested for sand infiltra- tion allow wind-driven sand and dust particles travelling at high speed to be intercepted by MERV filters, and this sand penetration leads to rapid clogging and choking of the ventilation equipment. Only frequently-scheduled or alarm-driven maintenance measures can prevent this. The problem is compounded since, over the last decade, HVAC equipment has become more Figure 2. Sand louver with inclined plate, usually called air-quality sensitive. Some facilities report as much as an 80% increase in maintenance cost a drain sill. Image courtesy of Ruskin Titus Gulf. due to dust/sand infiltration, and that substantial increase is not an anomaly—it is a trend. The need for a prefilter solution appears to only be increasing as HVAC equipment technology advances. WWW.AMCA.ORG 2 SAND LOUVERS TO THE RESCUE Sand louvers are increasingly chosen as a solution by building managers who struggle with wind-driven sand, as the equipment shields their building from sand before it becomes a problem. When airstreams with windborne sand impinge on the face of the louver blade, the terminal velocity of the airborne sand particle is greatly reduced. Gravity pulls the particles to the sloped louver sill before depositing them on the ground outside the building, sweeping them away from the clean airstream that passes through the louver blade gaps. (Figure 1). Sand that is stripped from the airstream will fall to the bottom of the louver and exits via a sloped sill (Figure 2). Typically, this sand simply then blows away. Figure 3. Current ANSI/AMCA Standard 500-L cover. Image courtesy of AMCA International ANSI/AMCA STANDARD 500-L—A NEW TEST STANDARD FOR SAND-RESISTANCE There is no contesting that the prefiltering action of sand louvers can provide significant savings in maintenance. But building manufacturers must also be certain that sand louvers perform as promised. It is important that there be a standard way to put sand louvers to the test and evaluate their effectiveness. In January 2016, AMCA International published a new test standard within its ANSI-accredited Standard 500-L, Laboratory Methods of Testing Louvers for Rating3 (Figure 3). ANSI/AMCA Standard 500-L already had rating test procedures for air pressure drop, wind-driven rain and other conditions. A test for wind-driven sand resistance was added in the new version. When developing the sand louver test, the following qualities were considered: • fairness • repeatability • performance rating • comparable testing • airborne particle size • mass distribution • re-entrainment Figure 4. Test louver rig for sand louver testing at Thomas Bell-Wright Independent Figure 5. Close up of the sand louver free area under test. Consultants, Dubai. Image courtesy of McGill Architectural Products. Image courtesy of McGill Architectural Products. WWW.AMCA.ORG 3 The new standard addresses wind-driven sand of particle sizes ranging from 74–699 microns. It adds a new, self-cleaning prefiltration media for the ventilation industry. The essential test output is sand rejection effectiveness (Es), which is defined by ANSI/AMCA Standard 500-L as the total mass of sand rejected divided by the total mass of sand injected times 100. Es is reported as a percentage. The airflow pressure drop measurement through the airflow chamber also is reported, and it is certified by AMCA as “air performance.” ANSI/AMCA Standard 500-L also defines a new wind-driven sand simulation rig that is capable of producing an airflow rate through the sand louver’s free area under test over the range of 1 m/s (197 fpm) to 7 m/s (1,378 fpm). These rates are consistent with the common airflow specifications used by most of the HVAC designers for inlets through louvers. The test rig (Figures 4 and 5) was constructed by Thomas Bell-Wright Independent Con- sultants in Dubai, which is an AMCA independent accredited laboratory after undergoing rigorous certification procedures. Tests are conducted on a louver with outside dimensions of 1220 mm x 1220 mm (48 in. x 48 in.) with a tolerance of +0, -6.3 mm (+0, -0.25 in.). Sample products are required to be as-built, unpainted, cleaned, degreased and without additional factory-applied coating on the product surface. They are tested in the full open position without a screen across the air passages of the louver. The wind-driven sand chamber is equipped with ducted sand injector equipment capable of blowing calibrated sand, in accordance with ISO 14688-1 and ISO 14688-2, at an air velocity of 20–25 m/s (Figure 6).
Load more

Recommended publications
  • Airflow Simulations Around OA Intake Louver with Electronic Velocity
    Airflow Simulations around OA Intake Louver with Electronic Velocity Sensors Hwataik Han*1, Douglas P. Sullivan2 and William J. Fisk3 1 Professor, Kookmin University, Korea 2 Research Associate, Indoor Environment Department, Lawrence Berkeley National Laboratory, USA 3 Director, Indoor Environment Department, Lawrence Berkeley National Laboratory, USA Abstract It is important to control outdoor airflow rates into HVAC systems in terms of energy conservation and healthy indoor environment. Technologies are being developed to measure outdoor air (OA) flow rates through OA intake louvers on a real time basis. The purpose of this paper is to investigate the airflow characteristics through an OA intake louver numerically in order to provide suggestions for sensor installations. Airflow patterns are simulated with and without electronic air velocity sensors within cylindrical probes installed between louver blades or at the downstream face of the louver. Numerical results show quite good agreements with experimental data, and provide insights regarding measurement system design. The simulations indicate that velocity profiles are more spatially uniform at the louver outlet relative to between louver blades, that pressure drops imposed by the sensor bars are smaller with sensor bars at the louver outlet, and that placement of the sensor bars between louver blades substantially increases air velocities inside the louver. These findings suggest there is an advantage to placing the sensor bars at the louver outlet face. Keywords: ventilation; outdoor
    [Show full text]
  • Performance Measurements of a Unique Louver
    Performance Measurements Grant O. Musgrove Southwest Research Institute, of a Unique Louver Particle San Antonio, TX 78238 e-mail: [email protected] Separator for Gas Turbine Engines Karen A. Thole Mechanical and Nuclear Engineering Department, Solid particles, such as sand, ingested into gas turbine engines, reduce the coolant flow The Pennsylvania State University, in the turbine by blocking cooling channels in the secondary flow path. One method to University Park, PA 16802 remove solid particles from the secondary flow path is to use an inertial particle separa- tor because of its ability to incur minimal pressure losses in high flow rate applications. In this paper, an inertial separator is presented that is made up of an array of louvers Eric Grover followed by a static collector. The performance of two inertial separator configurations was measured in a unique test facility. Performance measurements included pressure Joseph Barker loss and collection efficiency for a range of Reynolds numbers and sand sizes. To comple- ment the measurements, both two-dimensional and three-dimensional computational United Technologies Corporation – results are presented for comparison. Computational predictions of pressure loss agreed Pratt & Whitney, with measurements at high Reynolds numbers, whereas predictions of sand collection East Hartford, CT 06108 efficiency for a sand size range 0–200lm agreed within 10% of experimental measure- ments over the range of Reynolds numbers. Collection efficiency values were measured to be as high as 35%, and pressure loss measurements were equivalent to less than 1% pres- sure loss in an engine application. [DOI: 10.1115/1.4007568] Introduction operating principle of inertial separators is to cause the particle- laden flow to abruptly change trajectory, whereby the particles do Aircraft gas turbines ingest solid particles during takeoff, land- not react to the change in flow direction due to their larger inertia ing, and while flying in dusty environments.
    [Show full text]
  • High Performance House Best Practices Guide
    New York State Energy Research & Development Authority High Performance House Best Practices Guide Design Intelligence for Energy Performance in Single Family Homes TABLE OF CON T EN T S High Performance House 1.1 Initial Work................................... 3 1.2 Process.......................................... 4 1.3 Testing........................................... 4 1.3.1 Building Construction.............................. 4 1.3.2 Building Form and Siting......................... 5 1.3.3 Passive Sustainable Strategies................ 6 1.3.4 Active Sustainable Strategies................... 14 1.4 Conclusions................................... 14 1.4.1 Additional Recommendations.................. 15 2 1.1 INitiAL WORK 1.1 Initial Work ON cti Preliminary analysis looked purely at geometric implications on energy use. This theoretical investigation tested a variety of building forms and found two general guidelines that govern performance. Across all building manipulations, results showed that forms minimizing volume and RODU T maximizing southern exposure perform best. This lines with rational thought; increased volume N increases the volume of required conditioned space, while maximizing southern exposure allows I for greatest winter solar gains and daylighting. Following this study, energy analysis was given for three, previously conceived housing designs – “Slope House”, “Underground House” and “X House”. In all cases, formal design (siting, building form, orientation) were given, fixed parameters. This proved a challenge to the energy optimization of the house. For the “Slope House”, building volume opens to the west without the benefit of southern expo- sure on the open face. Passive solar gains were minimal, with excessive shading on south facing windows. The majority of glazing is to the north, which effectively cuts the building’s thermal resistance/storage without the offsetting solar gains received on southern exposures.
    [Show full text]
  • Damper Application Guide 1.” 1 Common 2 2 + Hot
    Control of Dampers ®® INDEX I. INTRODUCTION A. Economizer Systems ............................................................................................................ 3 B. Indoor Air Quality ...................................................................................................................3 C. Damper Selection ..................................................................................................................3 II. DAMPER SELECTION A. Opposed and Parallel Blade Dampers ..................................................................................3 B. Flow Characteristics...............................................................................................................4 C. Damper Authority ..................................................................................................................4 D. Combined Flow ......................................................................................................................6 III. ADDITIONAL CONSIDERATIONS A. Economizer Systems .............................................................................................................6 B. Building Pressure ...................................................................................................................8 C. Mixed Air Temperature Control ..............................................................................................8 D. Actuators - General ................................................................................................................8
    [Show full text]
  • IAQ Economizer LOGIC BOX
    IAQ Economizer LOGIC BOX Split-system Economizing/Indoor Air Quality/CO Alarm Activated Works on forced air systems, with or without air conditioning installed Enables cost saving cooling strategy: Expensive mechanical cooling can be set at a higher temperature Fresh Air Cooling can be set at a lower temperature Supports a variety Indoor Air Quality configurations: Continuous introduction Timed introduction CO2 or VOC sensor activated introduction Provides alarm activated fresh air introduction supporting CO or other alarm installations Occupant interface provides easy override, along with readiness, damper and fault status, (continuous fault detection) Operational tests can be conducted from within the conditioned space Quick connect wiring harnesses provide fast, correct termination FRESH AIR MANUFACTURING CO. FAMCO IAQ Economizer Famcoiaq.com 649 N. Ralstin St., Meridian, ID 83642 * (208)884-8931 * (800)-234-1903 * FAX: (208)884-8943 IAQ Economizer ECONOMIZER SYSTEM Damper Actuator Exhaust Damper Transformer Thermostat Logic Literature Box Cables Damper Box Actuator – Honeywell MS8105A1030, 24 VAC, 44 lb-in torque Outdoor thermostat- Dayton RLZ94A Nema 4X, Range 30º-110º F Transformer – RIB Functional Devices, Inc. TR50VA005 , 50VA All required System Cables are provided: • Power 40’ • Furnace 40’, plenum rated, HVAC industry standard color coding for furnace board termination • Damper Box 50’, plenum rated • Outdoor thermostat, 70’ , shielded, non polarity sensitive FRESH AIR MANUFACTURING CO. FAMCO IAQ Economizer
    [Show full text]
  • Building Applications, Opportunities and Challenges of Active Shading Systems: a State-Of-The-Art Review
    energies Review Building Applications, Opportunities and Challenges of Active Shading Systems: A State-Of-The-Art Review Joud Al Dakheel and Kheira Tabet Aoul * ID Architectural Engineering Department, United Arab Emirates University, P.O. Box 15551 Al Ain, UAE; [email protected] * Correspondence: [email protected]; Tel.: +971-566-433-648 Academic Editor: Arman Hashemi Received: 28 June 2017; Accepted: 4 August 2017; Published: 23 October 2017 Abstract: Active shading systems in buildings have emerged as a high performing shading solution that selectively and optimally controls daylight and heat gains. Active shading systems are increasingly used in buildings, due to their ability to mainly improve the building environment, reduce energy consumption and in some cases generate energy. They may be categorized into three classes: smart glazing, kinetic shading and integrated renewable energy shading. This paper reviews the current status of the different types in terms of design principle and working mechanism of the systems, performance, control strategies and building applications. Challenges, limitations and future opportunities of the systems are then discussed. The review highlights that despite its high initial cost, the electrochromic (EC) glazing is the most applied smart glazing due to the extensive use of glass in buildings under all climatic conditions. In terms of external shadings, the rotating shading type is the predominantly used one in buildings due to its low initial cost. Algae façades and folding shading systems are still emerging types, with high initial and maintenance costs and requiring specialist installers. The algae façade systems and PV integrated shading systems are a promising solution due to their dual benefits of providing shading and generating electricity.
    [Show full text]
  • BIM Handbook
    BIM Handbook A Guide to Building Information Modeling for Owners, Managers, Designers, Engineers, and Contractors Chuck Eastman Paul Teicholz Rafael Sacks Kathleen Liston John Wiley & Sons, Inc. BIM Handbook: A Guide to Building InformationModeling for Owners, Managers,Designers, Engineers, and Contractors. Chuck Eastman, Paul Teicholz, Rafael Sacks and Kathleen Liston Copyright © 2008 John Wiley & Sons, Inc. ffirs.indd i 1/3/08 12:32:13 PM This book is printed on acid-free paper. ϱ Copyright © 2008 by John Wiley & Sons, Inc. All rights reserved Published by John Wiley & Sons, Inc., Hoboken, New Jersey Published simultaneously in Canada No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600, or on the web at www.copyright.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at www.wiley.com/go/permissions. Limit of Liability/Disclaimer of Warranty: While the publisher and the author have used their best efforts in preparing this book, they make no representations or warranties with respect to the accuracy or completeness of the contents of this book and specifi cally disclaim any implied warranties of merchantability or fi tness for a particular purpose.
    [Show full text]
  • Studio Education for Integrated Practice Using
    STUDIO EDUCATION FOR INTEGRATED PRACTICE USING BUILDING INFORMATION MODELING A Dissertation by OZAN ÖNDER ÖZENER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2009 Major Subject: Architecture STUDIO EDUCATION FOR INTEGRATED PRACTICE USING BUILDING INFORMATION MODELING A Dissertation by OZAN ÖNDER ÖZENER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Mark J. Clayton Committee Members, Robert E. Johnson Wei Yan José L. Fernández-Solís Head of Department, Glen Mills December 2009 Major Subject: Architecture iii ABSTRACT Studio Education for Integrated Practice Using Building Information Modeling. (December 2009) Ozan Önder Özener, B.Arch., Istanbul Technical University; M.Arch., Istanbul Technical University Chair of Advisory Committee: Dr. Mark J. Clayton This research study posits that an altered educational approach to design studio can produce future professionals who apply Building Information Modeling (BIM) in the context of Integrated Project Delivery (IPD) to execute designs faster and produce designs that have demonstrably higher performance. The combination of new technologies and social/contractual constructs represents an alternative to the established order for how to design and how to teach designers. BIM emerges as the key technology for facilitating IPD by providing consistent, computable and interoperable information essential to all AEC teams. The increasing trend of BIM adoption is an opportunity for the profession to dramatically change its processes and may potentially impact patterns of responsibility and the paradigms of design.
    [Show full text]
  • Flow, Heat Transfer, and Pressure Drop Interactions in Louvered-Fin Arrays
    Flow, Heat Transfer, and Pressure Drop Interactions in Louvered-Fin Arrays N. C. Dejong and A. M. Jacobi ACRC TR-I46 January 1999 For additional information: Air Conditioning and Refrigeration Center University of Illinois Mechanical & Industrial Engineering Dept. 1206 West Green Street Prepared as part ofACRC Project 73 Urbana. IL 61801 An Integrated Approach to Experimental Studies ofAir-Side Heat Transfer (217) 333-3115 A. M. Jacobi, Principal Investigator The Air Conditioning and Refrigeration Center was founded in 1988 with a grant from the estate of Richard W Kritzer, the founder of Peerless of America Inc. A State of Illinois Technology Challenge Grant helped build the laboratory facilities. The ACRC receives continuing support from the Richard W. Kritzer Endowment and the National Science Foundation. The following organizations have also become sponsors of the Center. Amana Refrigeration, Inc. Brazeway, Inc. Carrier Corporation Caterpillar, Inc. Chrysler Corporation Copeland Corporation Delphi Harrison Thermal Systems Eaton Corporation Frigidaire Company General Electric Company Hill PHOENIX Hussmann Corporation Hydro Aluminum Adrian, Inc. Indiana Tube Corporation Lennox International, Inc. rvfodine Manufacturing Co. Peerless of America, Inc. The Trane Company Thermo King Corporation Visteon Automotive Systems Whirlpool Corporation York International, Inc. For additional information: .Air.Conditioning & Refriger-ationCenter Mechanical & Industrial Engineering Dept. University ofIllinois 1206 West Green Street Urbana IL 61801 2173333115 ABSTRACT In many compact heat exchanger applications, interrupted-fin surfaces are used to enhance air-side heat transfer performance. One of the most common interrupted surfaces is the louvered fin. The goal of this work is to develop a better understanding of the flow and its influence on heat transfer and pressure drop behavior for both louvered and convex-louvered fins.
    [Show full text]
  • Facilities Standards for the Public Buildings Service (PBS-PQ100.1)
    CHAPTER 1. GENERAL REQUIREMENTS Facilities Standards for the Public Buildings Service (PBS-PQ100.1) Arrangement of Chapters Chapter 1: General Requirements Appendix 1.A: Life Cycle Cost Example Chapter 2: Site Planning and Landscape Design Chapter 3: Architectural and Interior Design Chapter 4: Structural Engineering (Includes Seismic Design) Chapter 5: Mechanical Engineering Chapter 6: Electrical Engineering Appendix 6.A: Energy Efficient Design of New Buildings Chapter 7: Fire Protection Engineering Chapter 8: Security Design Index PBS-PQ100.1 June 14, 1996 Page i FACILITIES STANDARDS FOR THE PUBLIC BUILDINGS SERVICE CHAPTER 1 GENERAL REQUIREMENTS Purpose of the Facilities Standards for the Public Buildings Service ......................................................................................................... 1 Arrangement of Chapters.................................................................................... 3 Applicability of the Facilities Standards ........................................................................ 4 GSA Building Types .......................................................................................... 4 Office Buildings...................................................................................... 4 Courts...................................................................................................... 4 Border Stations........................................................................................ 4 Child Care Centers.................................................................................
    [Show full text]
  • Louver Products Severe Duty, Stationary, Operable
    Louver Products Severe Duty, Stationary, Operable November 2017 Louver Selection Guide In an effort to help located and select the louver you need, this catalog organizes the more than 100 standard Greenheck louver models into easily navigated categories, organized by your application requirements. Conventional Application Louvers Fixed Blade These conventional fixed blade louvers are among our most popular. All shown are AMCA Licensed for Air EDJ-401 Performance and Water Penetration and may be applied 4-inch depth in conventional intake or exhaust applications where Stationary provisions to manage water are present or some nuisance Drainable Head weather infiltration is acceptable or accounted for. These Extruded Aluminum louvers shown are among the most economical options. J-Blade ESJ-401 ESD-435 4-inch depth 4-inch depth Stationary Stationary Non-Drainable Drainable Blades Extruded Aluminum Drainable Head J-Blade Extruded Aluminum 56% Free Area ESJ-602 ESD-635 6-inch depth 6-inch depth Stationary Stationary Non-Drainable Drainable Blades Extruded Aluminum Drainable Head J-Blade Extruded Aluminum 59% Free Area 2 Louver Selection Guide Wind Driven Rain Louvers Fixed Blade These high performance wind driven rain fixed blade louvers are among our most popular. All shown are AMCA Licensed for Air Performance, Water Penetration and Wind Driven Rain and may be applied in intake or exhaust applications where provisions to manage water are limited. Wind Driven Rain louvers offer far superior protection against driving rain when compared to conventional louvers. Horizontal blade wind driven rain louvers perform extremely well, but vertical blade products offer the best performance considering both weather resistance and airflow performance.
    [Show full text]
  • Passive Building Design Guide: Multifamily Construction Copyright 2018 Passive House Institute US, All Rights Reserved
    Passive Building Design Guide FOR DEVELOPERS, INVESTORS & CONSTRUCTION PROFESSIONALS MULTIFAMILY CONSTRUCTION ACKNOWLEDGEMENTS We would like to thank the MacArthur Foundation for making this design guide and its associated website, the Multifamily Construction Resource Center (www.multifamily.phius.org), possible. Through these new resources, they do vital work building a more just verdant, and peaceful world, specifically through slashing the effects of global climate change. We thank them for their investment and commend them for acting locally on issues with global implications. We would also like to thank all of the people who worked with us to put this guide together. Their help tracking down photos, photo credits, providing technical insight, and inside information was invaluable and has made this a better book. Among the people who dropped everything to help: Sam Rodell, Erin Cooperrider, Dylan Lamar, Matt Fine, HousingUp, REACH CDC, Community Housing of Maine, Tinsley Morrison, Vickey Rand, Ben Walter, Colin Schless, Michael Hindle, Steve Bluestone, Hammer and Hand, Ben Bogie, James Hartford, Hank Keating, and last—but not least—Sloan Ritchie. Passive Building Design Guide: Multifamily Construction Copyright 2018 Passive House Institute US, all rights reserved. CONTENTS Introduction 4 Passive Building Fundamentals 5 �� Passive Building Benefits 6 Detail drawings eliminate weak links. �� 8 10 Great windows make rooms bigger. Passive Building Works for D A RE RCH TE I S T I E GMICHAEL WILLIAM CLINEC T E R C D 15 5/23/2014 2:38:40 PM S PORTLAND, OREGON A4.25 R 61CC T N 4 12 A #2987 O T E G E OF O R all Building Types ™ T.O PLATE AT BRICK 136' - 8" 6720 SW MACADAM AVENUE, SUITE 100 PORTLAND, OR 97219 6111 T 503-245-7100 4 117 SOUTH MAIN STREET, SUITE 400 �� SEATTLE, WA 98104 T 206-576-1600 12 R 61GC © ANKROM MOISAN ARCHITECTS, INC.
    [Show full text]